Instrument



" vine,

see,lhave invented 4a new` and useful Improvement in i following to the ordinary out-stick scale o.

l have a caliper, and thepoints of :Cttiilltt W ,Uit/wn Euwnr` n. MCKEAN-, or" NASHVILLE, TENNESSEE.

Letters Patent No. 105,352, dated .Tidy 12, 1870.

IMPROVEBIENT IN' CASE-GAUGING INSTRUMENT.

To all whom it 'may concern.-

Be it known ,that I, EDWIN R. McKean, of Nash in the county ot' Davidson and State ofTennes- Gauging Instruments; and I do hereby declare the be a full, clear, `and exact description of the same,referencebeing had to the accompanying drawing, in which;-

Figure 1 represents the rod as a caliper'` in taking thelength ofthe Cask. 4

t lllgnre 2, as a head-rod. in taking the head-diameer. f v I te Figure 3, as a bung-rod Vin taking thel bung-diamef Figure 4, `as a straight rod and out-Stick.

1| un u A h igure 5, a modmcation of the samemstrument. Il 'ly invention consists in a gauging-instrument, combiningwhat lis known' nsthe straight rod,'i"or1taking the capacity of casks by diagonal measurements; the

calipers for taking the lengthof the cask from the out` side;l the head-rod, for finding theheadaliameter; the bung-rod, for finding the bung-diameter, and the outstielr, for linding the number yof gallons out of the cask, s o that the gauger requires but one instrument to make all the measurements, and it isconstructed that, by

` det-aching the movable parts, a perfectly clean straight rod may be had.

A is a rod, upon one side of which-isa scaieforit-he `ordinary straight ro'd, and graduated in'gallons and parts, the same being on the under side whenV in the position as shown by iig. 1. Upon another face of' the rod A,l place a scale graduated in inchesrand tenths, arranged toread the barrellength iu connection wit-'li the calipers. At the opposite or butt end of the rod I inscribe Upon a third face, d, of the rod A is another scale, graduated i'o inches and tenths, and arranged to read the head diameter, and upon the remaining face of graduated also in .inches and tenths, and arrangedA to read the the4 rod is the scale e,

bung-diameter,

B and C are two slides, made 4to work over the rod A, with projections or arms marked D.

The'slide B is slipped on then-od toward the end f,

which has a mounting of brass or other metal with a small lip, g, topreventit from passing over the rod,

while a small,'flat spring, 71., sition until itfis desired to detachit, which vcan be done by pressing down the spring 1r.

The slide C, similar to B, `is then put on, and we the arms D, coming iu coutaetwith `the two heads of the eask, will note the length on the rod at I. The projections or lips ,keeps it tirm-in that poo on the undercgand inner 1 andt the ed A to rest order to' make 'the sides ot' `slides BA and C, and shown ov 2, are for the purpose ot' allowing `on the caskin a level position in under the stave.

u Y i i.

measurement more accurate. They may be made rigid, as shown, or with slides to avoid coming in contact with the 'hoops and thumb-screws, or equivalent devicesmay be employed to keep them -tirmly in position.

rEhe slide C is then detached, and the slide B is moved, for the purpose ot' taking the head-diameter, as shown iu .aint of the rod being placed'in the chime oi' the cas and the slide B.moved until the lip m strikes the chime at the opposite side, and the measurement will be found by reading the rod at n. v

For taking the bung-diameter, place the rod in the Cask, as shown in fig. 3, and move the slide B until the lip r touches the `underl side of the stave at the bung, and, by looking on the rod at s, the correct measurement will be or taking it out of thenask, and thus any slipping or derangementof the reading will-he avoided.

By detaehing the slidek B we have a clean, straight rod and out-stick, as shown in tig. 4, the scale for the straight rod being iu the under side, andthe end of the rod, at c, being laid od in gallons, dto., with a movable lip or ange at t, for thepurpose of going By this arrangement we have an instrument easily worked and carried, not liable to get out of order; one that can be made at small cost, and combining five instruments in one. i

In iig. 5 is represented a'slight'modilication oi' my instrument, performing the same work, combining the same-instruments, only diiiering in the permaneney ot' the arm B'in place of a slide, and the transposition .of some et' the scales and parts. By this arrangement there is but one movable part, and th'e same scale can 'De used for both theflength and thejhead-diameter, thus saving one scale.

Having described my invent-ion,

1. Aninstrurnent for gauging, iu which is combined the straight rd, calipers, head-rod, bung-rod, and out stick, substantially as shown and described.

2. The relative arrangementpf the buugro'd, scale,

and slide C, so that the measurement can be read without moving the instrument from the cash..

3. The caliper-slides B and C, provided with the arms 1),'01 their equivalents, and with the lips 'r and fm, in combination with an ordinary straight rod A., su that, without any additional parts, the length, lienddiameter, and bung-diameter of the cask may be taken.

4. rlhe lips or projections o on the slides B and C, for the-purpose of resting on the cask and keeping the. lrod in a level position.

. l. B. Mellrlntbl Witnesses:

B. D. O. Snrrrr, C. A.' Hiinrmnss.

giyen without disturbing vthe rod i 

